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webadm | 投稿日時: 2011-10-17 0:03 |
Webmaster ![]() ![]() 登録日: 2004-11-7 居住地: 投稿: 3110 |
Re: FRG-965/9600故障 低周波ノイズが出る症状をもう少し詳しく見てみると
・キャリアが出ていない周波数では症状が出ない ・17.5MHz間隔で症状がでるスプリアスが出ている 2番目があやしい。以前は見られなかった症状だ。 FRG-9600のサービスマニュアルを見ると、動作原理として狭帯域(SSB,AM,narrow FM)モードの際の第二局発(TCXO)の源発振水晶17.53MHzとぴったり一致する。本来は二逓倍した35.06MHzだけがBPFで取り出しているはずだが、それ以外も出てきているということになる。 ![]() どうやら原因は第二局発回路にありそうである。 問題の部分がすぐに確認できる位置にあるかどうかサービスマニュアルを見て調べてみよう。 P.S どうやら第二局発はFront End Unit(シールドケースに収まったチューナーモジュール)内らしい...orz |
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webadm | 2008-6-18 0:04 |
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webadm | 2008-6-18 10:50 |
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webadm | 2008-6-19 10:33 |
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webadm | 2008-6-19 21:25 |
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webadm | 2008-6-21 11:41 |
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webadm | 2008-6-21 13:08 |
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webadm | 2008-6-21 23:32 |
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webadm | 2008-6-22 0:02 |
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webadm | 2008-6-22 0:26 |
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webadm | 2008-6-22 0:54 |
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webadm | 2008-6-22 1:18 |
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webadm | 2008-6-22 20:07 |
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webadm | 2008-6-23 1:58 |
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webadm | 2008-6-23 8:07 |
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webadm | 2008-6-23 9:08 |
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webadm | 2008-6-23 22:11 |
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webadm | 2008-6-23 23:43 |
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webadm | 2008-6-24 10:35 |
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webadm | 2008-6-24 11:07 |
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webadm | 2008-6-24 11:26 |
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webadm | 2008-6-24 16:36 |
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webadm | 2008-6-25 12:17 |
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webadm | 2008-6-26 6:32 |
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webadm | 2008-6-26 9:45 |
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webadm | 2008-6-26 20:46 |
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webadm | 2008-6-26 21:01 |
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webadm | 2008-6-26 23:37 |
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webadm | 2008-6-27 7:48 |
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webadm | 2008-6-27 8:08 |
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webadm | 2008-6-27 8:31 |
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webadm | 2008-6-27 10:31 |
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webadm | 2008-6-27 22:27 |
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webadm | 2008-6-28 7:25 |
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webadm | 2008-6-28 10:36 |
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webadm | 2008-6-28 16:56 |
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webadm | 2008-6-29 4:07 |
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webadm | 2008-6-29 13:22 |
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webadm | 2008-6-29 15:47 |
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webadm | 2008-6-29 18:41 |
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webadm | 2008-6-30 4:30 |
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webadm | 2008-7-1 10:49 |
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webadm | 2008-7-1 20:42 |
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webadm | 2008-7-2 9:15 |
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webadm | 2008-7-3 11:18 |
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webadm | 2008-7-4 5:25 |
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webadm | 2008-7-4 6:05 |
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webadm | 2008-7-5 10:48 |
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webadm | 2008-7-5 20:56 |
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webadm | 2008-7-5 21:52 |
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webadm | 2008-7-6 5:29 |
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webadm | 2008-7-6 6:18 |
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webadm | 2008-7-6 19:05 |
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webadm | 2008-7-7 2:27 |
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webadm | 2008-7-9 3:28 |
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webadm | 2008-7-9 6:25 |
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webadm | 2008-7-9 6:35 |
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webadm | 2008-7-14 10:05 |
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webadm | 2008-7-15 7:49 |
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webadm | 2008-7-15 10:17 |
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webadm | 2008-7-17 17:22 |
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webadm | 2008-7-17 20:35 |
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webadm | 2008-7-18 1:14 |
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webadm | 2008-7-18 7:26 |
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webadm | 2008-7-18 8:22 |
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webadm | 2008-7-19 6:25 |
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webadm | 2008-7-19 9:36 |
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webadm | 2008-7-19 21:35 |
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webadm | 2008-7-20 7:13 |
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webadm | 2008-7-21 11:46 |
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webadm | 2008-7-20 22:21 |
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webadm | 2008-7-23 9:30 |
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webadm | 2008-7-26 6:42 |
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webadm | 2008-7-27 9:31 |
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webadm | 2008-7-30 22:52 |
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webadm | 2008-8-1 9:52 |
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webadm | 2008-8-2 0:07 |
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webadm | 2008-8-2 15:37 |
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webadm | 2008-8-3 7:30 |
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webadm | 2008-8-5 6:57 |
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webadm | 2008-8-6 4:02 |
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webadm | 2008-8-6 5:08 |
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webadm | 2008-8-7 22:34 |
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webadm | 2008-8-8 6:44 |
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webadm | 2008-8-8 8:51 |
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webadm | 2008-8-8 18:59 |
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webadm | 2008-8-8 19:03 |
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webadm | 2008-8-8 19:17 |
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webadm | 2008-8-8 21:19 |
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webadm | 2008-8-9 8:53 |
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webadm | 2008-8-9 18:49 |
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webadm | 2008-8-10 1:41 |
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webadm | 2008-8-10 7:36 |
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webadm | 2008-8-10 11:52 |
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webadm | 2008-8-11 3:35 |
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webadm | 2008-8-11 21:11 |
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webadm | 2008-8-12 10:51 |
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webadm | 2008-8-14 21:59 |
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webadm | 2008-8-15 7:04 |
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webadm | 2008-8-16 22:57 |
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webadm | 2008-8-17 4:55 |
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webadm | 2008-8-18 5:52 |
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webadm | 2008-8-20 4:55 |
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webadm | 2008-8-21 19:51 |
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webadm | 2008-8-24 0:01 |
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webadm | 2008-8-26 1:35 |
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webadm | 2008-8-26 4:13 |
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webadm | 2008-8-26 21:42 |
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webadm | 2008-8-30 20:23 |
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webadm | 2008-8-31 19:06 |
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webadm | 2008-9-3 7:27 |
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webadm | 2008-9-4 17:47 |
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webadm | 2008-9-6 7:10 |
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webadm | 2008-9-7 4:32 |
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webadm | 2008-9-8 8:17 |
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webadm | 2008-9-8 8:29 |
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webadm | 2008-9-8 20:31 |
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webadm | 2008-9-9 20:02 |
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webadm | 2008-9-12 7:56 |
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webadm | 2008-9-13 5:47 |
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webadm | 2008-9-13 22:27 |
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webadm | 2008-9-14 4:13 |
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webadm | 2008-9-15 3:56 |
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webadm | 2008-9-16 14:28 |
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webadm | 2008-9-17 8:07 |
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webadm | 2008-9-19 19:36 |
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webadm | 2008-9-20 23:17 |
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webadm | 2008-9-30 5:56 |
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webadm | 2008-9-30 7:49 |
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webadm | 2008-10-2 7:20 |
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webadm | 2008-10-9 10:49 |
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webadm | 2008-10-13 0:22 |
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webadm | 2008-10-13 0:53 |
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webadm | 2008-10-13 12:36 |
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webadm | 2008-10-14 5:27 |
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webadm | 2008-10-20 2:21 |
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webadm | 2008-11-3 7:29 |
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webadm | 2008-11-3 10:47 |
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webadm | 2008-11-9 6:49 |
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webadm | 2008-11-10 10:44 |
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webadm | 2008-11-18 6:28 |
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webadm | 2008-11-20 7:51 |
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webadm | 2008-12-20 6:39 |
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webadm | 2008-12-22 2:19 |
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webadm | 2008-12-24 18:49 |
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webadm | 2008-12-26 23:08 |
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webadm | 2008-12-27 21:29 |
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webadm | 2009-1-17 23:09 |
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webadm | 2009-2-6 8:28 |
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webadm | 2009-4-1 13:53 |
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webadm | 2010-1-20 0:53 |
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webadm | 2010-7-16 2:35 |
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webadm | 2010-7-27 4:33 |
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webadm | 2010-8-17 7:05 |
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webadm | 2010-8-25 8:48 |
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webadm | 2010-9-1 6:40 |
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webadm | 2010-9-16 10:39 |
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webadm | 2010-9-27 6:44 |
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webadm | 2010-10-16 9:59 |
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webadm | 2010-10-23 20:17 |
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webadm | 2010-10-28 9:40 |
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webadm | 2010-11-14 4:10 |
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webadm | 2010-11-15 19:16 |
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webadm | 2010-11-21 21:07 |
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webadm | 2010-11-21 21:23 |
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webadm | 2010-11-21 21:33 |
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webadm | 2010-11-23 1:45 |
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webadm | 2010-11-24 22:53 |
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webadm | 2010-11-26 16:17 |
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webadm | 2010-11-28 12:15 |
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webadm | 2010-11-29 23:43 |
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webadm | 2010-11-30 18:34 |
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webadm | 2010-12-3 6:13 |
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webadm | 2010-12-3 21:55 |
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webadm | 2010-12-6 22:55 |
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webadm | 2010-12-9 3:17 |
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webadm | 2010-12-9 21:55 |
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webadm | 2010-11-23 17:22 |
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webadm | 2010-11-24 22:22 |
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webadm | 2010-11-26 21:51 |
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webadm | 2010-11-26 23:23 |
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webadm | 2010-11-28 11:32 |
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webadm | 2010-12-3 6:25 |
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webadm | 2008-9-7 5:12 |
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webadm | 2010-12-26 22:17 |
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webadm | 2010-12-27 0:09 |
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webadm | 2010-12-28 8:57 |
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webadm | 2011-10-15 12:29 |
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webadm | 2011-10-16 0:37 |
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webadm | 2011-10-17 0:03 |

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